
	   var ob;
        function cargar(url,obj) 
	{
         ob = obj;
        
	if (window.XMLHttpRequest) 
	{ 
	// Non-IE browsers
				req = new XMLHttpRequest();       
				req.onreadystatechange = processStateChange;
				try {
					 req.open("GET", url, true);
				} catch (e) {
					 alert(e);
				}
				req.send(null);
			} else if (window.ActiveXObject) { // IE
			
				 req = new ActiveXObject("Microsoft.XMLHTTP");
				if (req) {
					 req.onreadystatechange = processStateChange;
					 req.open("GET", url, true);
					 req.send();
				 }
			}
	  }
          
          // Para actualizar la pagina
          function processStateChange() {

            if (req.readyState == 4) { // Complete
                if (req.status == 200) { // OK response
                                document.getElementById(ob).innerHTML = req.responseText;
                } else {
                            alert("Problem: " + req.statusText);
                    }
             }
	  }
          
   
       
          
        
